Why do some Jews Avoid The Arch of Titus in Rome?

In the year 70, a Roman force led by Titus put down a rebellion by the Jews in Palestine and destroyed the city of Jerusalem.

Titus became Roman emperor nine years later, but he reigned for only two years. The next emperor, Domitian, erected an arch in Rome to celebrate Titus’s victory in Palestine.

That arch still stands in Rome, near the colosseum. The Arch of Titus is one site in Rome that Jewish visitors steer clear of. Because of Titus’s destruction of Jerusalem, Jewish authorities centuries ago declared that any Jew who waked under the arch would no longer be a Jew.

After reading the article “Why do some Jews avoid the arch of Titus in Rome”, i would like to know the real reason why they avoid the arch or refuse to walk under it.

Is it because it reminds them of the sacking of Jerusalem? Please i would appreciate the answer to this. In your article you simply say that” To this day, no Jew has ever knowingly walked under the arch!”, but you don’t give the exact reason why.